./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:30,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:30,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 10:45:30,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:30,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:31,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:31,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:31,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:31,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:31,029 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:31,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:31,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:31,031 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:31,034 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:45:31,034 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:45:31,035 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:45:31,035 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:45:31,037 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:45:31,038 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:45:31,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:31,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:45:31,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:31,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:31,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:45:31,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:45:31,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:45:31,041 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:31,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:31,042 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:45:31,043 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:31,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:31,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:31,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:31,045 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:31,046 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:45:31,046 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2023-11-26 10:45:31,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:31,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:31,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:31,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:31,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:31,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2023-11-26 10:45:34,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:34,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:34,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2023-11-26 10:45:34,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/data/cebe94b43/0c466a32b8144f8caca7e28ec23f3b79/FLAGb2bd7dd5e [2023-11-26 10:45:34,899 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/data/cebe94b43/0c466a32b8144f8caca7e28ec23f3b79 [2023-11-26 10:45:34,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:34,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:34,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:34,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:34,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:34,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:34" (1/1) ... [2023-11-26 10:45:34,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7120bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:34, skipping insertion in model container [2023-11-26 10:45:34,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:34" (1/1) ... [2023-11-26 10:45:34,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:35,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:35,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:35,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:35,157 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:35,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35 WrapperNode [2023-11-26 10:45:35,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:35,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:35,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:35,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:35,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,202 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-26 10:45:35,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:35,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:35,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:35,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:35,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,225 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,232 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 10:45:35,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:35,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:35,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:35,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:35,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (1/1) ... [2023-11-26 10:45:35,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:35,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:35,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:35,441 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:35,444 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:35,548 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:35,557 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:35,558 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:45:35,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:35 BoogieIcfgContainer [2023-11-26 10:45:35,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:35,561 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:45:35,561 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:45:35,566 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:45:35,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:35,567 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:45:34" (1/3) ... [2023-11-26 10:45:35,568 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f421c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:35, skipping insertion in model container [2023-11-26 10:45:35,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:35,569 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:35" (2/3) ... [2023-11-26 10:45:35,569 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f421c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:35, skipping insertion in model container [2023-11-26 10:45:35,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:35,570 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:35" (3/3) ... [2023-11-26 10:45:35,571 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2023-11-26 10:45:35,644 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:45:35,646 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:45:35,646 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:45:35,646 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:45:35,646 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:45:35,647 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:45:35,647 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:45:35,647 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:45:35,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:35,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:45:35,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:35,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:35,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:35,684 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:35,684 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:45:35,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:35,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:45:35,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:35,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:35,688 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:35,689 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:35,700 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L27-2true [2023-11-26 10:45:35,702 INFO L750 eck$LassoCheckResult]: Loop: 10#L27-2true assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 8#L19true assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 5#L27true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 10#L27-2true [2023-11-26 10:45:35,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:45:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:35,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737827769] [2023-11-26 10:45:35,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:35,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:35,875 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times [2023-11-26 10:45:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580486666] [2023-11-26 10:45:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:35,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times [2023-11-26 10:45:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:35,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708154804] [2023-11-26 10:45:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:35,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:36,102 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:36,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:36,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:36,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:36,103 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:36,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:36,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:36,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2023-11-26 10:45:36,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:36,104 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:36,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:36,261 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:36,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:45:36,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:36,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:36,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:36,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:36,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-26 10:45:36,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:45:36,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:36,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:36,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:36,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:36,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:36,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:36,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:36,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:45:36,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-26 10:45:36,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:45:36,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:36,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:36,467 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:36,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:36,476 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:36,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:36,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:36,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:36,477 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:36,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:36,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:36,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2023-11-26 10:45:36,478 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:36,478 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:36,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:36,589 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:36,593 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:36,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 10:45:36,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:36,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:36,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:36,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:36,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:36,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:36,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:36,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:36,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:36,667 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:45:36,668 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:45:36,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:36,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:36,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:36,684 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:36,684 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:36,685 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:36,686 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-26 10:45:36,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 10:45:36,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:36,701 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:36,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-26 10:45:36,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:36,765 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:36,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:36,781 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:36,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:36,853 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:36,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:36,943 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 47 transitions. Complement of second has 8 states. [2023-11-26 10:45:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2023-11-26 10:45:36,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-26 10:45:36,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:36,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-26 10:45:36,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:36,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-26 10:45:36,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:36,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 47 transitions. [2023-11-26 10:45:36,963 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-26 10:45:36,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 17 states and 26 transitions. [2023-11-26 10:45:36,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-26 10:45:36,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-26 10:45:36,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2023-11-26 10:45:36,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:36,970 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-26 10:45:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2023-11-26 10:45:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2023-11-26 10:45:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2023-11-26 10:45:37,000 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2023-11-26 10:45:37,001 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2023-11-26 10:45:37,001 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:45:37,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2023-11-26 10:45:37,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-26 10:45:37,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:37,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:37,003 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 10:45:37,003 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:37,003 INFO L748 eck$LassoCheckResult]: Stem: 86#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 88#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 96#L19 [2023-11-26 10:45:37,003 INFO L750 eck$LassoCheckResult]: Loop: 96#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 97#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 95#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 96#L19 [2023-11-26 10:45:37,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,004 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-26 10:45:37,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521861187] [2023-11-26 10:45:37,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times [2023-11-26 10:45:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013369812] [2023-11-26 10:45:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times [2023-11-26 10:45:37,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143749330] [2023-11-26 10:45:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,087 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:37,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:37,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:37,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:37,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:37,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:37,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:37,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2023-11-26 10:45:37,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:37,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:37,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:37,157 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:37,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:37,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 10:45:37,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:37,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:37,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:37,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:37,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 10:45:37,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:37,230 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:37,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:37,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:37,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 10:45:37,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:37,267 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:37,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-26 10:45:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,280 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 10:45:37,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:37,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:37,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,317 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 10:45:37,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:37,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:37,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:37,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-26 10:45:37,413 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:37,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:37,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:37,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:37,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:37,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:37,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:37,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2023-11-26 10:45:37,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:37,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:37,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:37,493 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:37,494 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:37,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,500 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 10:45:37,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:37,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:37,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:37,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:37,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:37,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:45:37,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:45:37,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:37,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,561 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:37,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:37,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:37,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:37,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:37,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:37,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:37,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:37,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 10:45:37,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:37,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,601 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:37,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:37,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:37,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:37,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:37,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:45:37,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:45:37,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 10:45:37,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:37,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,657 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:37,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 10:45:37,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:37,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:37,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:37,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:37,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:37,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:37,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:37,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:37,688 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:45:37,688 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:45:37,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:37,690 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:37,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 10:45:37,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:37,697 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:37,697 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:37,697 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-26 10:45:37,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:37,702 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:37,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:37,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:37,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:37,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:37,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:37,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:37,792 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:37,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,838 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 71 transitions. Complement of second has 7 states. [2023-11-26 10:45:37,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-26 10:45:37,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2023-11-26 10:45:37,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:37,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-26 10:45:37,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:37,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-26 10:45:37,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:37,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions. [2023-11-26 10:45:37,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-26 10:45:37,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions. [2023-11-26 10:45:37,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-26 10:45:37,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-26 10:45:37,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions. [2023-11-26 10:45:37,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:37,856 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions. [2023-11-26 10:45:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions. [2023-11-26 10:45:37,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2023-11-26 10:45:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.606060606060606) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions. [2023-11-26 10:45:37,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions. [2023-11-26 10:45:37,869 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions. [2023-11-26 10:45:37,869 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:45:37,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions. [2023-11-26 10:45:37,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-26 10:45:37,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:37,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:37,874 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 10:45:37,874 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:37,874 INFO L748 eck$LassoCheckResult]: Stem: 186#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 188#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 202#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 190#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 193#L27-2 [2023-11-26 10:45:37,874 INFO L750 eck$LassoCheckResult]: Loop: 193#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 210#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 208#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 193#L27-2 [2023-11-26 10:45:37,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2023-11-26 10:45:37,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193751968] [2023-11-26 10:45:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2023-11-26 10:45:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439465167] [2023-11-26 10:45:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times [2023-11-26 10:45:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634747133] [2023-11-26 10:45:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:37,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:37,995 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:37,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:37,996 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:37,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:37,996 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:37,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:37,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:37,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:37,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2023-11-26 10:45:37,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:37,997 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:37,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,061 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:38,061 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:38,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,063 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:38,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 10:45:38,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:38,091 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:38,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,100 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:38,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 10:45:38,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:38,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:38,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,145 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:38,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 10:45:38,199 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:38,199 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:38,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,210 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:38,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 10:45:38,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,247 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:38,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 10:45:38,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:38,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,297 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:38,297 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:38,297 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:38,297 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:38,297 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:38,297 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:38,298 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:38,298 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2023-11-26 10:45:38,298 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:38,298 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:38,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:38,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:38,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,371 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:38,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:38,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:38,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:38,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:38,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:38,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:38,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:38,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 10:45:38,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:38,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,421 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:38,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 10:45:38,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:38,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:38,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:38,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:38,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:38,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:38,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:38,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:38,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,469 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:38,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:38,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:38,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:38,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:38,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:38,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 10:45:38,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:38,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:38,497 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:38,500 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:45:38,501 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,506 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,508 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:38,509 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:38,509 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:38,509 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-26 10:45:38,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 10:45:38,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,514 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:38,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:38,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:38,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:38,557 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:38,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:38,584 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:38,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:38,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 78 transitions. Complement of second has 8 states. [2023-11-26 10:45:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-11-26 10:45:38,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-26 10:45:38,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:38,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-26 10:45:38,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:38,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-26 10:45:38,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:38,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions. [2023-11-26 10:45:38,643 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-26 10:45:38,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions. [2023-11-26 10:45:38,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-26 10:45:38,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-26 10:45:38,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions. [2023-11-26 10:45:38,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:38,646 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions. [2023-11-26 10:45:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions. [2023-11-26 10:45:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2023-11-26 10:45:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 41 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions. [2023-11-26 10:45:38,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions. [2023-11-26 10:45:38,656 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions. [2023-11-26 10:45:38,656 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:45:38,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions. [2023-11-26 10:45:38,657 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-26 10:45:38,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:38,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:38,658 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-11-26 10:45:38,659 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:38,659 INFO L748 eck$LassoCheckResult]: Stem: 316#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 317#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 322#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 342#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 333#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 332#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 327#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 328#L27 [2023-11-26 10:45:38,659 INFO L750 eck$LassoCheckResult]: Loop: 328#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 353#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 351#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 328#L27 [2023-11-26 10:45:38,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times [2023-11-26 10:45:38,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:38,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093987168] [2023-11-26 10:45:38,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:38,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:38,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:38,693 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times [2023-11-26 10:45:38,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:38,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965014712] [2023-11-26 10:45:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:38,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:38,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:38,716 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times [2023-11-26 10:45:38,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:38,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661159850] [2023-11-26 10:45:38,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:38,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:38,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:38,762 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:38,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:38,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:38,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:38,762 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:38,763 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,763 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:38,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:38,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2023-11-26 10:45:38,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:38,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:38,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:38,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:38,839 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:38,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,843 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:38,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 10:45:38,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:38,871 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:38,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:38,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:38,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 10:45:38,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,985 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:38,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:38,989 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:38,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:38,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:38,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:38,989 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:38,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:38,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:38,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:38,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2023-11-26 10:45:38,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:38,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:38,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,094 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:39,094 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:39,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,097 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 10:45:39,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:39,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:39,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:39,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:39,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:39,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:39,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:39,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:39,121 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:39,125 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:45:39,125 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:39,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,127 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:39,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:39,133 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:39,133 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-26 10:45:39,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 10:45:39,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-26 10:45:39,138 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:39,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,177 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,193 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:39,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states. [2023-11-26 10:45:39,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:39,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-26 10:45:39,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-26 10:45:39,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:39,245 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:45:39,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,282 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,301 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:39,301 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states. [2023-11-26 10:45:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-26 10:45:39,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-26 10:45:39,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:39,344 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:45:39,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,382 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:39,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,400 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:39,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,443 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 109 states and 163 transitions. Complement of second has 8 states. [2023-11-26 10:45:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2023-11-26 10:45:39,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-26 10:45:39,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:39,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-26 10:45:39,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:39,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-26 10:45:39,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:39,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions. [2023-11-26 10:45:39,458 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2023-11-26 10:45:39,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions. [2023-11-26 10:45:39,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2023-11-26 10:45:39,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-26 10:45:39,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions. [2023-11-26 10:45:39,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:39,464 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions. [2023-11-26 10:45:39,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions. [2023-11-26 10:45:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2023-11-26 10:45:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2023-11-26 10:45:39,484 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions. [2023-11-26 10:45:39,484 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2023-11-26 10:45:39,485 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 10:45:39,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2023-11-26 10:45:39,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2023-11-26 10:45:39,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:39,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:39,488 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-11-26 10:45:39,488 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:39,489 INFO L748 eck$LassoCheckResult]: Stem: 814#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 815#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 820#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 842#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 862#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 858#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 830#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 831#L27 [2023-11-26 10:45:39,489 INFO L750 eck$LassoCheckResult]: Loop: 831#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 811#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 853#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 831#L27 [2023-11-26 10:45:39,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times [2023-11-26 10:45:39,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:39,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77824115] [2023-11-26 10:45:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:39,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77824115] [2023-11-26 10:45:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77824115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:39,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:39,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:39,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556395564] [2023-11-26 10:45:39,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:39,605 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 10:45:39,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times [2023-11-26 10:45:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:39,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680213415] [2023-11-26 10:45:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:39,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:39,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:39,646 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:39,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:39,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:39,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:39,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:39,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:39,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:39,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2023-11-26 10:45:39,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:39,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:39,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:39,731 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:39,732 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:39,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,733 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 10:45:39,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:39,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:39,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:39,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,774 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 10:45:39,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:39,792 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:39,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,796 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 10:45:39,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,815 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:39,815 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:39,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-26 10:45:39,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,819 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 10:45:39,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:39,863 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:39,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:39,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,871 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 10:45:39,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:39,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:39,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:39,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,913 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:39,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 10:45:39,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:39,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:39,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,948 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:39,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 10:45:40,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:40,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,067 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:40,067 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:40,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:40,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:40,068 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:40,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:40,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:40,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2023-11-26 10:45:40,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:40,068 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:40,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,079 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:40,146 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:40,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,148 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 10:45:40,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:40,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:40,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,194 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:40,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 10:45:40,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:40,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,237 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 10:45:40,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:40,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:40,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,281 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 10:45:40,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:45:40,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:45:40,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:40,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,322 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-26 10:45:40,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:40,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:40,365 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:45:40,365 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:40,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,367 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,372 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:40,372 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:40,372 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:40,372 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-26 10:45:40,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 10:45:40,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,381 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:40,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:40,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:40,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:40,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:40,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:40,448 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-26 10:45:40,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:40,472 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 196 states and 321 transitions. Complement of second has 7 states. [2023-11-26 10:45:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-26 10:45:40,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-26 10:45:40,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:40,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-26 10:45:40,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:40,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-26 10:45:40,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:40,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions. [2023-11-26 10:45:40,478 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2023-11-26 10:45:40,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions. [2023-11-26 10:45:40,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2023-11-26 10:45:40,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2023-11-26 10:45:40,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions. [2023-11-26 10:45:40,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:40,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions. [2023-11-26 10:45:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions. [2023-11-26 10:45:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2023-11-26 10:45:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.638655462184874) internal successors, (195), 118 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions. [2023-11-26 10:45:40,489 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions. [2023-11-26 10:45:40,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:45:40,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:45:40,493 INFO L87 Difference]: Start difference. First operand 119 states and 195 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:40,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:40,514 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2023-11-26 10:45:40,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions. [2023-11-26 10:45:40,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-26 10:45:40,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions. [2023-11-26 10:45:40,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-26 10:45:40,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-26 10:45:40,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions. [2023-11-26 10:45:40,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:45:40,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions. [2023-11-26 10:45:40,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions. [2023-11-26 10:45:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2023-11-26 10:45:40,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2023-11-26 10:45:40,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-26 10:45:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:45:40,535 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-26 10:45:40,535 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 10:45:40,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2023-11-26 10:45:40,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-26 10:45:40,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:40,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:40,536 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-26 10:45:40,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:45:40,537 INFO L748 eck$LassoCheckResult]: Stem: 1344#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1350#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1362#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1358#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1379#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1354#L19 [2023-11-26 10:45:40,537 INFO L750 eck$LassoCheckResult]: Loop: 1354#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1351#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 1352#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1354#L19 [2023-11-26 10:45:40,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times [2023-11-26 10:45:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635253018] [2023-11-26 10:45:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:40,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times [2023-11-26 10:45:40,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032684756] [2023-11-26 10:45:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:40,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:40,556 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times [2023-11-26 10:45:40,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:40,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417416950] [2023-11-26 10:45:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:40,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:40,592 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:40,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:40,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:40,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:40,593 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:40,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:40,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:40,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2023-11-26 10:45:40,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:40,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:40,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:40,647 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:40,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,649 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:40,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 10:45:40,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:40,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:40,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,677 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-26 10:45:40,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:40,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,692 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:40,692 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:40,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,696 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-26 10:45:40,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:40,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:40,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:40,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-26 10:45:40,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,722 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-26 10:45:40,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:40,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:45:40,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:45:40,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,747 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-26 10:45:40,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:40,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-26 10:45:40,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,769 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-26 10:45:40,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:40,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:40,846 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:40,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-26 10:45:40,849 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:40,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:40,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:40,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:40,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:40,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:40,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:40,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2023-11-26 10:45:40,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:40,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:40,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:40,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:40,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:40,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,923 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-26 10:45:40,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:40,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:40,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:40,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,953 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:40,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-26 10:45:40,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:40,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:40,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:40,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:40,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:40,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:40,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:41,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:41,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:41,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:41,006 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:41,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:41,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-26 10:45:41,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:41,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:41,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:41,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:41,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:45:41,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:45:41,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:41,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:41,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:41,056 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:41,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:41,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-26 10:45:41,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:41,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:41,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:41,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:41,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:45:41,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:45:41,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:41,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-26 10:45:41,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:41,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:41,097 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:41,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-26 10:45:41,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:45:41,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:41,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:41,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:41,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:41,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:41,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:41,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:41,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:41,137 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:45:41,137 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:41,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:41,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:41,143 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:41,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:41,148 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:41,148 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:41,148 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-26 10:45:41,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-26 10:45:41,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,152 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:41,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:41,202 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:41,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,224 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states. [2023-11-26 10:45:41,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-26 10:45:41,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-26 10:45:41,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:41,226 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:45:41,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:41,287 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:41,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:41,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states. [2023-11-26 10:45:41,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-26 10:45:41,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-26 10:45:41,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:41,314 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:45:41,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:45:41,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:41,356 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:45:41,356 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,377 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 129 transitions. Complement of second has 8 states. [2023-11-26 10:45:41,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-26 10:45:41,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-26 10:45:41,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:41,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-26 10:45:41,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:41,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters. [2023-11-26 10:45:41,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:41,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions. [2023-11-26 10:45:41,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:45:41,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions. [2023-11-26 10:45:41,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 10:45:41,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 10:45:41,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 10:45:41,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:41,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:41,383 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:41,383 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:41,383 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 10:45:41,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:45:41,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:45:41,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 10:45:41,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:45:41 BoogieIcfgContainer [2023-11-26 10:45:41,392 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:45:41,392 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:45:41,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:45:41,393 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:45:41,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:35" (3/4) ... [2023-11-26 10:45:41,395 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:45:41,396 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:45:41,397 INFO L158 Benchmark]: Toolchain (without parser) took 6493.00ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 105.5MB in the beginning and 147.7MB in the end (delta: -42.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:41,397 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 153.1MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:41,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.86ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 96.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:45:41,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 94.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:41,398 INFO L158 Benchmark]: Boogie Preprocessor took 55.72ms. Allocated memory is still 153.1MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:41,399 INFO L158 Benchmark]: RCFGBuilder took 299.75ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 84.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:45:41,399 INFO L158 Benchmark]: BuchiAutomizer took 5830.65ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 84.3MB in the beginning and 147.7MB in the end (delta: -63.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:41,400 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 190.8MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:41,401 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 153.1MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.86ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 96.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 94.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.72ms. Allocated memory is still 153.1MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.75ms. Allocated memory is still 153.1MB. Free memory was 92.9MB in the beginning and 84.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5830.65ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 84.3MB in the beginning and 147.7MB in the end (delta: -63.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 190.8MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (-1 * x) and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function (-1 * x) and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 99 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf94 smp88 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 10:45:41,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91833cd-e25f-4b56-bcda-f4b62b5375c4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE